ASTROSAT CZTI

Data Quality Report

Orbit 10518

Creation date: 2024-06-27T16:00:26.669033
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A03_033T01_9000001524_10518cztM0_level2.evt modeM0/AS1A03_033T01_9000001524_10518cztM0_level2_quad_clean.evt
Size (bytes)204,318,72034,344,000
Size194.9 MB 32.8 MB
Events in quadrant A1,414,784211,359
Events in quadrant B1,723,283216,840
Events in quadrant C1,322,073214,597
Events in quadrant D1,541,285202,587

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058722
B068461
C057211
D063111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2713341.253225%
B27131334.902322%
C2713381.400663%
D2713481.769259%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 3778 2714 8 8 0.21% 0.29%
B 3778 2714 36 36 0.95% 1.33%
C 3778 2714 0 0 0.00% 0.00%
D 3778 2714 6 6 0.16% 0.22%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 251 58682 809.99 344 335 72.0
A 3 80 15450 209.83 344 335 72.0
A 11 29 6734 88.83 344 335 72.0
B 4 239 318289 4749.05 344 335 67.0
B 0 214 30957 457.38 344 335 67.0
B 4 81 9482 136.62 344 335 67.0
C 14 234 4759 56.35 337 337 78.5
C 13 61 2604 28.89 337 337 78.5
C 8 222 837 6.37 337 337 78.5
D 2 16 95996 1185.55 335 325 80.7
D 8 195 88220 1089.19 335 325 80.7
D 13 104 32991 404.79 335 325 80.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter